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Method, device and system for transmitting data in mobile Ad hoc network

A data transmission method and network technology, applied in the field of data transmission methods, devices and systems in mobile Ad hoc networks, capable of solving the problems that data transmission cannot perform error detection at the same time

Inactive Publication Date: 2011-02-09
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention provides a data transmission method, device and system in a mobile Ad hoc network to solve the problem that error detection cannot be performed simultaneously during data transmission

Method used

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  • Method, device and system for transmitting data in mobile Ad hoc network
  • Method, device and system for transmitting data in mobile Ad hoc network
  • Method, device and system for transmitting data in mobile Ad hoc network

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Embodiment Construction

[0034] Embodiments of the present invention provide a method, device and system for realizing data transmission in a mobile Ad hoc network, which can perform error detection while transmitting data, so that the process of error detection can be carried out for a long time without additional overhead control detection list of nodes.

[0035] Embodiments of the present invention provide a data transmission method in a mobile Ad hoc network, such as figure 1 shown, including the following steps:

[0036] S101: The source node selects a route to the destination node according to the stored error link information;

[0037] S102: The source node sends a data packet to the destination node through sequential forwarding of each intermediate node in the route, and receives a data confirmation packet returned by the destination node through sequential forwarding of each intermediate node in the route; wherein, When the intermediate node detects that the difference between the number o...

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Abstract

The invention discloses a method, a device and a system for transmitting data in a mobile Ad hoc network. The method comprises the following steps that: a source node selects a route to a destination node according to saved error link information; the source node transmits a data packet to the destination node through sequential forwarding of each intermediate node in the route, receives the data packet received by the destination node and then sequentially forwards the returned data acknowledgement packet through each intermediate node in the route, wherein the intermediate node transmits a data error packet to the source node when monitoring that the difference between the number of the data packets forwarded by the intermediate node and the number of the data acknowledgement packets exceeds a set threshold value; and the source node determines that a link between the intermediate node in the intermediate nodes which do not transmit the data error packet closest to the source node and the previous hop of node is an error link and saves the error link in the error link information when determining that the difference between the number of the transmitted data packets and the number of the data acknowledgement packets exceeds the set threshold value.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method, device and system in a mobile Ad hoc network. Background technique [0002] The mobile Ad hoc network is a wireless mobile network without central infrastructure support, and the nodes in the network are all composed of mobile terminals. The nodes in the mobile Ad hoc network are not only communication terminals, but also have routing functions, and can move freely. The data is sent in a multi-hop manner. It can provide flexible and convenient communication without the support of fixed infrastructure, which broadens the application of mobile communication. It can be applied in many fields such as military affairs, transportation, education, etc., and has a very bright application prospect. However, due to the unique characteristics of many mobile Ad hoc networks, such as the mobility of terminals, the variability of network topology, multi-hop ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W24/04
Inventor 邹力鹍
Owner BEIJING WATCH DATA SYST